Lina moves to Sonnwil and finds a glowing chalk in Grandma's attic. A story in eight episodes for children aged 5 to 9.
A new school, new friends, a little lie and a big grumble. Each episode is about courage, friendship or honesty.
Free







Your child chooses who lives the story: Lina, who becomes Lumina, or Lino, who becomes Lumino. The same story, each hero with their own voice.

Between the pictures, your child picks up the chalk. No timer, nothing to lose.

Trace the line with a finger and Lina transforms.

First words stroke by stroke, like on the blackboard.
Every line is read aloud. Your child helps decide what Lina does.
Grandma says a word and your child claps along, once per syllable: Li-na, Muf-fin, But-ter-fly.
The German text shows syllables in alternating blue and red, like first-reader books. You can turn it off in the Parent Area.
Lina: The Chalk Hero is a story and learning app for children from kindergarten to third grade. Your child follows Lina, who turns into the superhero Lumina with her magic chalk, and practises reading, writing and listening along the way, with no ads and no internet.
Coloured syllables (the German first-reader method) and clapping games break long words into easy parts, which makes beginning readers more confident.
Trace letters like on a blackboard, first single letters, then first words such as the hero's name.
Every line is read aloud, in German or English. Great for children who can't read everything yet, and for hearing a second language through play.
A new school, being left out at break, a little lie: the stories pick up real feelings of school children and show how courage, friendship and honesty help.
Made for the App Store Kids category and Google Play's Families programme, and it works entirely offline.
Episodes 2 to 8 are a one-time purchase, one by one or all together.
For children aged 5 to 9, from kindergarten to third grade. Everything is read aloud, so children who can't read yet, or not fluently, enjoy it too.
Yes. No ads, no tracking, no account and no third-party software. The app collects no data.
Yes, fully offline: in the car, on the train, on a plane or on holiday. Only buying more episodes needs a quick connection.
No subscription. Episode 1 is free. Episodes 2 to 8 are a one-time purchase, one by one or all together, in the Parent Area behind the parental gate. With Apple Family Sharing, purchases work for the whole family; on Google Play, on every device with the same account.
The app doesn't replace school, but it practises what children are learning there through play: writing letters, clapping syllables and reading words in coloured syllables.
German and English, each with its own voices. You can switch the language at any time in the Parent Area.
Yes. Your child chooses between Lina, who becomes the superhero Lumina, and Lino, who becomes the superhero Lumino.
In short: Lina: The Chalk Hero collects no data. The app is made for children aged 5 to 9 and works entirely offline.
Boris Stiner, Switzerland · Email: hello@borisstiner.com
None. The app does not collect, store, transmit or sell any personal data, from children or from adults. In particular:
Progress (episodes played, stars, stickers, hero colours, language and settings) is stored only locally on the device. We have no access to it. Deleting the app removes it completely.
Episode 1 is free. More episodes can be bought in the Parent Area, which is protected by a parental gate. Purchases are handled entirely by Apple through the App Store or by Google Play and are subject to Apple's privacy policy or Google's privacy policy. We receive no personal data, only an anonymous confirmation that a purchase is valid on this device.
The app is made for the App Store Kids category and Google Play's Families programme. Because we collect no data, no data from children is collected, used or shared. Purchases, ratings and any links out of the app are only reachable in the Parent Area behind a parental gate.
Since we process no personal data, there is nothing for us to disclose, correct or delete. For any privacy question (Swiss FADP, GDPR, COPPA) you can reach us at any time at the email address above. If you email us, we use your address only to reply.
If anything in this policy changes, we update this page and the date at the top.
Questions, problems or ideas? Email hello@borisstiner.com; we usually reply within two days.